Siemens NXAIR User Manual

13 NXAIR / ≤ 40 kA 110-0134.9 / 14
Technical data
4 Technical data
4.1 Complete switchgear
Rated voltage
[kV]
7.2
12
17.5
Rated frequency
[Hz]
50/60
50/60
50/60
Rated power-frequency
withstand voltage
[kV]
20
1)
28
1)
38
Rated lightning impulse
withstand voltage
[kV]
60
75
95
Rated short-time withstand current, max.
[kA]
40
40
40
Rated duration of short circuit, max.
[s]
3
3
3
Rated peak withstand current
[kA]
100/104
100/104
100/104
Rated voltage
[kV]
7.2
12
17.5
Rated normal current of busbar, max.
[A]
4000
4000
4000
Rated normal current of feeders, max.
with circuit-beaker
[A]
4000
4000
4000
with disconnector
[A]
4000
4000
4000
with contactor
[A]
400
2)
400
2)
400
2)
with switch-fuse combination
[A]
200
2)
200
2)
200
2)
as bus sectionalizer
[A]
4000
4000
4000
1)
Available as special version: 32 kV at 7.2 kV, or, except for contactor, 42 kV at 12 kV
2)
Depending on rated current of installed HV HRC fuse-links
4.2 Basic prescriptions and standards
The indoor switchgear complies with the following prescriptions and standards:
IEC / EN standard
Switchgear
62271-1
62271-200
Switching devices
Circuit-breakers
62271-100
Contactors
60470
Disconnectors / earthing switches
62271-102
Switch-fuse combination
62271-105
Current limiting fuses
60282-1
Voltage detecting systems
61243-5
Insulation
60071-1
Degree of protection
60529
Instrument
transformers
Current transformers
61869-2
Voltage transformers
61869-3
Installation, erection
61936-1

Siemens NXAIR Specifications

General

Brand	Siemens
Model	NXAIR
Category	Industrial Equipment
Language	English